Welche Auswirkungen Farben auf die Conversion Rate haben

Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /homepages/15/d32965251/htdocs/SEO-Search-Engine-Optimization/wp-content/plugins/seo-auto-links/seo-auto-links.php on line 76

Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /homepages/15/d32965251/htdocs/SEO-Search-Engine-Optimization/wp-content/plugins/seo-auto-links/seo-auto-links.php on line 246